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Aerodynamic Shape Optimization using Simultaneous Pseudo-Timestepping

Hazra, S.B.; Universität Trier and Schulz, V.; Universität Trier and Brezillon, J. and Gauger, N.R. (2004) Aerodynamic Shape Optimization using Simultaneous Pseudo-Timestepping. Other. 04-2.

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Abstract

The paper deals with a numerical method for aerodynamic shape optimization. It is based on simultaneous pseudo-timestepping in which stationary states are obtained by solving the non-stationary system of equations representing the state, costate and design equations. The main advantages of this method are that it requires no additional globalization techniques and that a preconditioner can be used for convergence acceleration which stems from the reduced SQP method. A design example for drag reduction for an RAE2822 airfoil, keeping its thickness fixed, is included. The overall cost of computation is less than 4 times that of the forward simulation run.

Document Type:Monograph (Other)
Additional Information: LIDO-Berichtsjahr=2004,
Title:Aerodynamic Shape Optimization using Simultaneous Pseudo-Timestepping
Authors:
AuthorsInstitution or Email of Authors
Hazra, S.B.; Universität TrierUNSPECIFIED
Schulz, V.; Universität TrierUNSPECIFIED
Brezillon, J.UNSPECIFIED
Gauger, N.R.UNSPECIFIED
Date:2004
Series Name:Trierer Forschungsberichte
Status:Published
Keywords:shape optimization, simultaneous pseudo-timestepping, Euler equations, preconditioner, reduced SQP methods, one-shot method, airfoil
Institution:Universität Trier, Fachbereich IV - Mathematik/Informatik
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L ST - Starrflüglertechnologien
DLR - Research theme (Project):L - Concepts & Integration
Location: Köln-Porz , Braunschweig , Göttingen
Institutes and Institutions:Institute of Aerodynamics and Flow Technology
Deposited By: Claudia Grant
Deposited On:31 Jan 2006
Last Modified:14 Jan 2010 19:38

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